Neuropeptide Y-deficient mice show altered circadian response to simulated natural photoperiod
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چکیده
منابع مشابه
Neurotensin-deficient mice show altered responses to antipsychotic drugs.
The peptide transmitter neurotensin (NT) exerts diverse neurochemical effects that resemble those seen after acute administration of antipsychotic drugs (APDs). These drugs also induce NT expression in the striatum; this and other convergent findings have led to the suggestion that NT may mediate some APD effects. Here, we demonstrate that the ability of the typical APD haloperidol to induce Fo...
متن کاملAttenuation of diabetic hyperphagia in neuropeptide Y--deficient mice.
The combined effects of increased hypothalamic signaling by neuropeptide Y (NPY) and decreased signaling by melanocortins are hypothesized to stimulate food intake when body fat stores are depleted. To investigate NPY's role in the hyperphagic response to uncontrolled diabetes, streptozotocin (STZ) (200 mg/kg intraperitoneally) or saline vehicle was given to NPY-deficient (Npy(--/--)) and wild-...
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Autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED) is a monogenic autosomal recessive disease caused by mutations in the AIRE gene. Here we have produced knock-out mice for the Aire gene. The Aire-/- mice develop normally; however, autoimmune features of APECED in Aire-/- mice are evident, including multiorgan lymphocytic infiltration, circulating autoantibodies and inferti...
متن کاملAbnormal response of the neuropeptide Y-deficient mouse reproductive axis to food deprivation but not lactation.
Neuropeptide Y (NPY) plays a key role in both food intake and GnRH secretion. Food deprivation elevates hypothalamic NPY activity and suppresses LH and gonadal steroid secretion. Similarly, lactation up-regulates NPY expression as food consumption increases and estrous cycles cease. These observations suggest that NPY coordinates reproductive suppression in response to energy deficiency; if so,...
متن کاملPregnancy is associated with altered response to neuropeptide Y in uterine artery.
Pregnancy is associated with a significant increase in uterine blood flow which contributes to optimal fetal development. Although neuropeptide Y (NPY) is considered to be an important regulator of uterine blood flow, it is not known whether: (i) products from the vascular endothelium modulate NPY action in the uterine artery; (ii) pregnancy changes the responsiveness of the uterine artery to N...
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ژورنال
عنوان ژورنال: Brain Research
سال: 2008
ISSN: 0006-8993
DOI: 10.1016/j.brainres.2008.09.040